PR# 19057 SCOOP melted code bad behavior

See the code

class HTTPD_STREAM_SOCKET
feature
        socket: STREAM_SOCKET
....
	accept_to (other: separate HTTPD_STREAM_SOCKET)
			-- Accept a new connection on listen socket.
			-- Socket of accepted connection is available in `other'.
		do
			if
				attached {NETWORK_STREAM_SOCKET} socket as l_socket and then
				attached {separate NETWORK_STREAM_SOCKET} other.socket as l_other_socket
			then
				l_socket.accept_to (l_other_socket)
			end
		end

note that all objects in `socket' are TCP_STREAM_SOCKET that inherits from NETWORK_STREAM_SOCKET.

If the code is melted, the issue is that the call to accept_to never occurs because the second object test return False.
BUT the debugger shows other.socket is not Void and is a TCP_STREAM_SOCKET !
Freezing the system, makes it working fine.

to reproduce comment l_socket.accept_to (l_other_socket)   recompile, then uncomment , recompile again, and run ... see in debugger the bad behavior.

get code from https://github.com/jocelyn/EWF/tree/concurrent_accept_to

Archive file https://github.com/jocelyn/EWF/archive/concurrent_accept_to.zip

or using git
% git clone -b concurrent_accept_to https://github.com/jocelyn/EWF

or with older version of git
% git clone https://github.com/jocelyn/EWF
% cd EWF
% git checkout -b concurrent_accept_to origin/concurrent_accept_to

Last info "To reproduce" .. I forgot to mention the project to compile.

EWF\library\server\ewsgi\connectors\httpd\httpd-safe.ecf   target=dev

and the related class HTTPD_STREAM_SOCKET , and feature `accept_to'

I have the issue with 15.05.9.6654  + trunk/Src at revision 96839
But I was not able to reproduce the issue with  15.05.9.6836